//out:  ../css/

@vw: 3.75vw;

.wrapper {
    margin: 0 auto;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

ul,
ol {
    list-style: none;
}

a {
    text-decoration: none;
}


.top {
    width: 100%;
    height: (60/@vw);
    box-shadow: 0px 0px (10/@vw) (-8/@vw) black
}

.top a {
    line-height: (60/@vw);
    padding: (20/@vw) (20/@vw);
    color: #333333;

}

.top span{
    margin-left: (90/@vw);
    line-height: (60/@vw);
    color: #333333;
}
.core{
    width: 100%;
    height: (600/@vw);
    /* margin-top: (40/@vw); */
    background-image: url(../images/lunbo1.jpg);
    background-size: (900/@vw);
    padding-top: (40/@vw);
    
}
.core .wrapper{
    margin: 0 auto;
    background-color:#fff;
    width: (280/@vw);
    height: (250/@vw);
    border-radius: (8/@vw);
    padding: (14/@vw) (15/@vw);
    font-size:(19/@vw) ;
    color: #333333;
    
}